Phoenix Audio: DRS-Q4M mk2 - Mono Class A Microphone Pre-Amplifier/DI/EQ

The DRS-Q4M mk2 is a 4 Band Gyratory-based Eq with 11 selectable frequencies, and Mic, Line, and DI inputs. We know you will be as pleased with it’s sonic qualities as we are. The DRS-Q4M mk2 has the advantages of more than 25 years experience in audio engineering, today’s component and manufacturing technology, but still retaining “that sound” uniquely achievable through Class A design. Phoenix Audio is dedicated to the development of Class A discrete technology used within high build-quality equipment.



The DRS-Q4M mk2 uses our well proven and loved Class A output stage (DSOP-2) coupled with our custom wound output transformer, but also has our latest breakthrough in transformerless Class A, Discrete, truly-balanced Mic Input Technology which gives a “valve-like” sound. It also incorporates our high input impedance DI circuitry.  

The Gyrator EQ circuit was designed around 40 years ago and was originally designed to emulate the characteristics of a coil or inductor EQ circuit without the issues that they can cause, the result is that our EQ circuit found in the DRS-Q4M mk2 is a very powerful but musical EQ perfect for sculpting or crafting vocals, drums or instruments etc whilst still being able to be used on mix bus duties.  

Specifications:

1U half rack space unit: With 240V/110V mains voltage input selector switch  
Class A (DSOP-2) Output specs. Frequency response: 20Hz to 20kHz +- 0.5dB, 
Maximum Output Level: +26dBu @ 1kHz 
Noise: -90dB @ 20Hz to 20kHz. 
Output connections: XLR and TSR 1/4″ Jack on rear 
Phoenix Audio’s unique Class A, transformer-less, True balanced Mic input stage. 
Phoenix Audio’s custom wound output transformer. 
Microphone/Line input: XLR on Rear Panel 
DI inputs: ¼” TSR Jack on Front Panel 
Individual Earth Lift: Push-button Switches 
Gain Range (Mic input): -30 to -70 in 5dB steps With 10dB more available on the fader. 
Gain reduction: -30dB push-button Mic/Line switch (Mic input) 
High Input Impedance DI: Mono 1/4″ Jack on front panel (no FETs) 
Gain Meter: LED Metering. (Green = 0dB, Yellow = +8dB, corresponding to “4” and “6” on a PPM Meter). 
Phantom Power: Switchable phantom on Push-button Switch 
High Pass Filter: Roll-off starts at 120Hz @ 12dB per Octave. 
Phase Reverse: on Push-button Switch 
Frequency Response Mic Input Stage: -0.4dB @ 40Hz, -0.3dB @ 25kHz 
Frequency Response: DI Input Stage: -0.3dB @ 40Hz, – 0.5dB @ 25kHz 
Typical Headroom: +24dB on Mic-Pre stage 
Gyratory-based EQ Frequency Centres: (4 Bands) High – 15K, 10K, Hi Mid – 6K, 3K, 1K6, Low Mid – 800Hz, 400Hz, 200Hz, Low – 130Hz, 80Hz, 40Hz 
EQ Cut/Boost Levels: 16dB Cut/Boost Per Band 
EQ is stepped/dentented to 21 positions for easy recall settings 
DI Stage gain: Maximum of 20dB 
All units are wired with PTFE silver military grade cable 

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